The JD Model H was manufactured to "meet the demands of small-acreage farmers everywhere for a tractor
that will handle all power jobs at rock-bottom cost, and meet the demands of the large-acreage farmers who have
always wanted and needed economical auxiliary power to handle lighter farm jobs, John Deere offers the new one-two
plow Model H". Quoted from a 1939 sales brochure introducing the new tractor.

The main goals of the Model H design were to lower the operating costs by the use of low-cost distillate fuels,
lower the purchase price through simplified design, and improve the usability via a 3-speed transmission and adjustable
wheel spacing. The Model H is unique among the General Purpose tractors because power was taken off the camshaft
instead of the crankshaft. This reduced the output speed of the engine, and the usual bull gears at each axle were
no longer required.

Four versions of the Model H were produced: The Model H (a dual narrow-front row crop), the Model HN (same as
the Model H but with a single front wheel), the Model HWH (same as the Model H but had 8-38 rear tires and an adjustable
wide front axle), and the Model HNH (same as the HWH except with a single front wheel).

Approximately 60,000 of the Model H were built. New (in 1940) the tractor cost around $650.00

The JD Model H Today

Like all of the old John Deere tractors, the Model H is very collectible. The Model HWH and HNH are the most
collectible due to their rareness. Only about 125 of the HWH were built, and a small number of the HNH's were built
as well.

Quite a few of these tractors are still being used on the farm as a backup tractor or for everyday chores. With
the large number of John Deere collectors and enthusiasts, I would venture to say that the largest number are being
collected, and either restored or kept in original condition under cover for showing or admiration.

Deere submitted a Model H tractor under Serial No. H-1000 for Test No. 312. Equipped to burn distillate fuel,
the Model H carried the usual two-cylinder horizontal engine - in this case it used 3-9/16 x 5 inch bore and stroke
with a rated speed of 1,400 rpm. Standard equipment included an Edison-Splitdorf RM-2 magneto and a Marvel-Schebler
DLTX-26 carburetor. Standard equipment also included 7.50 x 32 inch rear tires and 4.00 x 15 front rubber. Weight
as tested was 3,035 pounds. Three forward speeds of 2-1/2, 3-1/2 and 5-3/4 mph were provided, with second gear
being used for Test H (rated drawbar). This ten hour test revealed a fuel economy of 10.16 horsepower hours per
gallon of fuel, along with a pull of 1,065 pounds at 3.44 mph for an output of 9.77 drawbar horsepower. Test G
for operating maximum horsepower indicated a low-gear maximum pull of 1,839 pounds a 2.38 mph and slippage of 10.14%
for a net output of 11.67 drawbar horsepower. Belt horsepower tests indicate an impressive fuel economy of 11.62
horsepower hours per gallon of distillate at rated load of 13.01 horsepower. This figure improved slightly to 11.95
when under operating maximum load of 14.22 belt horsepower. No repairs or adjustments were noted during the 43
hours of engine running time.

Serial Numbers

The serial number is located on the right-hand side of the tractor on the main case in the flywheel area.

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